tdlib/td

Features

• Custom Client Implementations - Provides the foundational network, encryption, and storage management necessary to build custom Telegram applications.
• Media Handling - Handles the transmission and processing of video files, video notes, and voice notes.
• Chat Media Management - Manages the upload and storage of audio, animations, and stickers for the messaging client.
• Data Integration & Synchronization - Ensures sequential delivery of updates and non-blocking request processing to synchronize client and server state.
• JSON Data Parsers - Provides a C-compatible JSON interface for serializing and deserializing data structures.
• Local Database Security - Secures the local database using encryption keys and directory configuration.
• Local State Databases - Provides a system for handling local data caching, encrypted storage, and synchronized state for messaging clients.
• Real-time Data Synchronization - Provides a stream of real-time updates to keep local data stores synchronized with the network state.
• Client Development Libraries - Functions as a cross-platform framework for building custom applications by managing encryption, local storage, and API communication.
• Multi-Language Bindings - Provides native C++, Java, and .NET bindings alongside a JSON interface for cross-platform language integration.
• Messaging Platform Integrations - Connects diverse programming languages to the Telegram ecosystem via a JSON-based API for cross-platform functionality.
• Asynchronous Messaging Clients - Implements a client library that manages asynchronous communication and state updates with the Telegram service.
• Bot Command Interfaces - Defines and registers interactive bot commands with specific visibility scopes.
• Bot Interaction Orchestration - Manages the lifecycle and event-driven execution of bot commands, callback queries, and inline searches.
• Bot Metadata Discovery - Retrieves bot-specific metadata, including descriptions, names, and media preview settings.
• Chat Bot Integrations - Provides a framework for connecting bots to business accounts and managing their permissions.
• Interface Configuration - Configures bot menu buttons and default administrator rights requested when joining chats.
• Chat Session Management - Enables the establishment and management of various chat types, including private, secret, and supergroups.
• Client State Management - Handles the complex network implementation and local data storage needed to maintain a synchronized client state.
• Network Communication Implementations - Manages the complete network layer, including encryption and connection stability, for secure communication.
• Cross-Platform Messaging SDKs - Provides native bindings for C++, Java, and .NET to implement secure messaging and real-time communication.
• JSON-RPC Interfaces - Provides a C-compatible JSON interface for language-agnostic interaction via standard input and output.
• Chat Synchronization - Synchronizes real-time updates for chat members, draft messages, and scheduled messages across devices.
• Message Content Modification - Updates the text, media, captions, or interactive elements of messages already sent.
• Message Lifecycle Management - Handles the full lifecycle of sending, receiving, and updating text, media, and interactive messages.
• History Retrieval - Fetches sequences of historical messages from specific conversations for display.
• Transmission Protocols - Transmits various message types, including business messages and bot start commands, to target recipients.
• Group Call Coordination - Enables the initiation, management, and termination of real-time voice and video calls for groups of users.
• Real-Time Voice and Video Communication - Coordinates real-time video sessions while tracking participant status and stream quality for a stable experience.
• Rich Media Transmission - Sends photos, videos, audio files, documents, and voice notes to target chats.
• Telegram Bot Frameworks - Provides a specialized framework for creating interactive bots with custom commands and inline queries.
• Localization - Sets and retrieves bot names and commands in specific languages to localize the user experience.
• Profile Editing - Updates bot descriptions, media previews, and command links.
• Call Lifecycle Management - Manages the full lifecycle of group calls, including participant invitations, stream control, and session recording.
• Text Message Transmission - Sends formatted text messages with support for inline keyboards and reply markups.
• Account Recovery - Provides mechanisms for restoring account access using recovery codes and password resets.
• Authentication Flows - Manages multi-step authentication flows by tracking authorization states and API credentials.
• Call Encryption - Processes encrypted data streams to ensure the security and privacy of real-time group voice and video calls.
• Encrypted Database Managers - Provides a management interface for securing local database files using encryption keys.
• Encrypted Persistence - Secures all application data at rest on local storage using a user-provided encryption key.
• Email Authentication Strategies - Validates user identities through email-based credential flows and third-party authentication providers.
• Email Verification Flows - Implements workflows for verifying user identity using one-time codes sent via email.
• End-to-End Encryption - Implements end-to-end encryption for private conversations to ensure only communicating users can access content.
• Device Registration Services - Links specific hardware devices to user accounts to ensure secure and authorized access.
• Credential Security and Utilities - Processes and manages account security credentials, including password states and recovery emails.
• Session Management - Tracks device models and registration tokens to maintain secure, persistent connection contexts for users.
• Authentication Code Processing - Handles the processing of login codes and passkeys to verify user identities during authentication.
• Credential Management - Provides APIs for creating, retrieving, and removing passkeys associated with a user identity.
• Password Authentication - Verifies user identity through the validation of passwords, phone numbers, emails, and passkeys.
• Password Recovery Systems - Facilitates the recovery of authentication passwords and the management of recovery email addresses.
• Session State Tracking - Tracks the current state of user sessions and manages pending verification requirements.
• Session Authentication - Manages the authentication of user identities through login flows and the termination of active sessions.
• Account Security Policies - Manages authentication states, password requirements, and recovery email settings to secure user accounts.
• User Identity Management - Provides comprehensive systems for managing user profiles, authentication passwords, and login emails.
• Request-Response Exchanges - Implements the core mechanism for sending function calls to the service and receiving corresponding results or updates.
• Message Forwarding Utilities - Sends existing messages from one chat to another while maintaining a reference to the source.
• JSON Interfaces - Provides a C-compatible JSON interface allowing any programming language to interact with the engine via serialized requests.
• Chat History APIs - Provides interfaces for deleting individual messages, chat histories, and forum topics.
• Chat State Management - Monitors real-time changes to chat properties such as titles and member counts.
• File Transfer - Controls the bidirectional movement of files, including upload and download cancellation.
• Visual and Behavioral Configuration - Modifies visual and behavioral properties of a chat, including accent colors and notifications.
• Messaging Media Formats - Handles video messages, voice notes, and storyboards to ensure consistent playback across clients.
• Authentication and Identity - Manages user authorization flows, passkeys, and identity document verification for secure account access.
• Account Management - Provides tools for managing personal user account details, birthdates, and addresses during registration and updates.
• Account Deletion - Provides functionality for users to permanently remove their accounts and associated chat histories from the platform.
• Business Management Platforms - Handles business-specific features like connected bots, chat links, and story management.
• Contact Discovery - Syncs external contact lists with platform accounts to identify and discover known users.
• Global Messaging Search - Locates chats, messages, contacts, and stickers using server-side global queries.
• Member - Filters through chats or member lists to locate specific users or messages.
• Notification Preferences - Sets and toggles default notification preferences for specific conversations.
• Chat Member Administration - Manages user access, permissions, and administrative roles, including banning members from chats.
• Member Detail Retrieval - Retrieves detailed member lists, roles, and administrative settings for chats.
• Supergroup Configuration - Provides administrative controls for supergroups, including anti-spam measures, forum tabs, and member visibility.
• Transaction Processing - Processes the execution and state management of premium gift codes, auction bids, and store transactions.
• Virtual Gifting - Supports the discovery, purchase, sending, and auctioning of virtual digital gifts.
• Content Forwarding Restrictions - Toggles the restriction of content forwarding and saving within chats.
• Content Tagging Systems - Implements systems for assigning and querying tags to facilitate discovery of messages and stories.
• Instant View Rendering - Processes and displays simplified, fast-loading versions of web pages.
• Paginated Retrieval - Implements mechanisms for fetching large datasets of chats and messages in discrete chunks for better performance.
• Local File Operations - Performs basic file system operations including reading, deleting, and tracking storage statistics.
• Local Data Engines - Manages local file downloads and the clearing of cached search tags for offline use.
• Message Search - Provides indexing and retrieval utilities for querying historical chat data and hashtags.
• Profile Information Retrieval - Retrieves specific account and profile details, including passport elements and bank card information, using unique identifiers.
• Pagination - Enables retrieval of chat history in reverse chronological order using windowed data views via offset and limit.
• Search and Indexing - Provides integrated search and indexing for locating messages, chats, and files across local and server storage.
• Content Search Filters - Locates specific messages, chat members, and calendar events using various search criteria.
• Account Settings - Retrieves user-specific configuration presets, including application-level settings and auto-download preferences.
• Language Pack Synchronization - Synchronizes and retrieves localized strings from system or custom language packs to support multi-language interfaces.
• Localization Management - Manages language packs and translation strings to adapt the user interface for different regions.
• Audio Volume Controls - Provides APIs to monitor and adjust the volume levels of individual participants during live video chats.
• Multimedia Processing - Processes photos, videos, animations, and stickers, including management of metadata and spoiler flags.
• Video Content - Handles the upload, playback, and metadata management for video and animation content.
• Sticker Set Management - Manages the creation and organization of digital sticker sets and animation assets.
• Stream Source Controls - Controls audio and video sources, including the management of stream segments and screen sharing during calls.
• Business Account Configuration - Controls the linking and removal of bots associated with business accounts.
• Automated Greeting Configuration - Sets and manages greeting message settings for business profiles to automate interactions.
• Data Querying - Retrieves business-related data such as connected bots and feature sets.
• Story Management - Posts, reposts, edits, and deletes stories on behalf of business accounts.
• Business Account Integration - Connects bots to business accounts and defines their specific rights and management capabilities.
• Chat Interaction Coordination - Coordinates member invitations, spam reporting, and the updating of contact information within chats.
• Chat Security Configurations - Configures anti-spam protections and protected content settings for group chats.
• Metadata Management - Updates chat photos, titles, and descriptions for groups and channels.
• Chat Topic Management - Provides systems for creating, editing, closing, and deleting named topics within forum supergroups.
• Supergroup Capability Toggles - Toggles structural capabilities for supergroups, such as forum tabs and topic organization.
• Communication Blocking - Maintains block lists for users and stories to prevent unwanted interactions at the server level.
• Chat Moderation Tools - Provides tools for moderating group chats by managing memberships and handling ownership transfers.
• Web Push Notification Receivers - Handles the registration of device tokens to receive and decrypt background push messages.
• Group Membership Management - Manages the lifecycle and state of users joining groups or channels via direct requests or invite links.
• Participant Management - Provides controls for managing individual call participants, including volume adjustment, mute states, and hand-raising requests.
• Bans - Provides the ability to remove members from chats or group calls and specify ban durations.
• Contact Management - Implements utilities for managing user address books and synchronizing contact profile information.
• Conversation Entry - Enables users to enter chats, group calls, or live stories using direct identifiers or invitation links.
• Download Managers - Manages a local queue for retrieving parts of remote files with progress tracking.
• Ephemeral Story Publishing - Manages the creation, closing, and modification of user stories and story albums.
• Story Content Retrieval - Fetches active and archived stories associated with specific chats or pages.
• Story Interaction Controls - Activates stealth mode and updates the read or live state of user stories.
• Group Membership Control - Handles the adding, removing, banning, and restricting of users within groups and supergroups.
• Inline Query Interfaces - Returns rich media or articles as suggestions during inline bot searches.
• Interactive Polls - Enables the creation and distribution of interactive polling messages to collect user responses.
• Message Reference Linking - Links messages to other internal or external messages for quoting and referencing.
• Invite Link Management - Implements the generation and validation of access tokens via invite links for private communication groups.
• Invitation Processing - Handles the processing of group call invitations, allowing users to accept or reject requests to join live sessions.
• Live Session Joining - Allows users to connect to ongoing group calls or live stories with optional speaker permissions.
• Location Data Transmission - Allows sending geographic coordinates or specific venue information to target chats.
• Message Reactions - Provides capabilities to add, remove, and mark message reactions as read across various chat types.
• Message Scheduling - Allows messages to be scheduled for automatic delivery at a specific future date.
• Message State Management - Allows editing of text, captions, media, and reply markups for existing messages to synchronize state.
• Network Connectivity Configurations - Manages network connectivity settings, including proxy configurations and traffic statistics monitoring.
• Network Proxy Management - Provides tools for setting up and activating proxy servers to route network traffic.
• Client Session Management - Creates and tracks unique identifiers for client sessions to handle multiple independent request flows.
• Proxy Configurations - Provides configurations to direct outbound network traffic through specific authenticated proxy endpoints.
• Push Notifications - Implements logic for receiving and processing remote push alerts on the client side.
• Remote File Downloads - Retrieves files from remote servers with controls to pause or cancel the operation.
• Interactive Message Content - Provides capabilities to send native interactive elements such as polls, games, and checklists to users.
• Metadata Configuration - Provides capabilities to define bot descriptions, commands, and default administrator rights.
• Operations Administration - Enables configuration of bot tokens and management of inline queries and media previews.
• Profile Management - Allows updating the bot's name, description, profile photo, and command list.
• Profile Retrieval - Provides the ability to fetch bot descriptions, names, and related bot suggestions.
• Query Processing - Processes callback, inline, shipping, and web app queries to provide dynamic responses.
• Call Control Interfaces - Offers interfaces for controlling call operations, such as discarding active sessions and declining incoming invitations.
• User and Topic Discovery - Provides systems for finding users and communication channels via phone numbers or tokens.
• Access Control Lists - Manages access control lists to ban members and restrict interactions with user stories.
• Account Lifecycle Management - Manages the full lifecycle of user accounts, including their permanent removal and data deletion.
• Chat Action Permissions - Defines and enforces granular permissions for actions like editing, deleting, or pinning messages within chats.
• Identity Document Management - Handles the submission and validation of official identification documents for user verification.
• User Profile Management - Allows the modification of user account attributes, including usernames and custom emoji statuses.
• Profile Media Management - Enables the upload and removal of profile audio, backgrounds, and stickers.
• Identity Verification Services - Provides programmatic flows for verifying user attributes such as age and bot authenticity.
• User Access Management - Controls and verifies the ability of users to perform administrative actions and manage security policies.
• Identity Verification - Verifies or removes identity verification for users and chats on behalf of organizations.
• Identity Data Fetching - Provides capabilities to fetch personal details and financial information required for account verification.
• Passport Data Processing - Processes and validates identity elements and email addresses for official user verification.
• Passport Element Storage - Stores and retrieves sensitive identity documents and registration details for verification purposes.
• User Block Lists - Controls which users are blocked from sending messages or interacting.
• User Passport Management - Handles temporary registration and identity elements for user passport documentation.
• User Profile Retrieval - Provides API endpoints to retrieve personal identity details and profile photo timestamps for the authenticated user.
• Long-Polling Queries - Uses long-polling to retrieve incoming updates and user interactions incrementally from the server.
• Object Mapping APIs - Provides mechanisms to convert API objects into string representations for flexible type manipulation and serialization.
• Synchronous Request-Response Loops - Supports blocking request execution for specific API calls to retrieve immediate responses.
• Unread Content Tracking - Monitors the number of unread messages, mentions, and reactions across various chats.
• Background Fill Colors - Supports the application of solid colors, gradients, patterns, and custom wallpapers as chat backgrounds.
• Buttons - Implements interactive keyboard buttons that can request user data or trigger web applications.
• Interactive Message - Builds interactive buttons for messages that trigger callbacks or redirect to URLs.
• User - Allows updating or removing profile photos, passport elements, and saved credentials.
• Chat Interface Customizations - Provides a comprehensive set of customizations for chat backgrounds, themes, and folder organizations in the UI.
• Chat Visual Customizations - Allows the configuration of chat backgrounds, accent colors, and theme emojis for a personalized visual presentation.
• Global Notification Settings - Configures global alerts, sounds, and scoping for different chat types.
• Chat List Loading - Loads sorted lists of chats for main, archived, and folder views.
• Web Application Integration - Provides mechanisms to launch, query, and configure integrated web applications within the client.
• Notification Management - Configures default behaviors for mutes, previews, and notification overrides.
• Notification Read Status Managers - Tracks and updates the read status for individual messages, business messages, and chat lists.
• Structured Rich Text Converters - Converts raw text into structured entities using Markdown or HTML for UI rendering.
• Rich Text Styling - Parses and applies styles such as bold, italic, and links using HTML or Markdown.
• Link Preview Services - Generates rich visual summaries for shared URLs, including support for photos and videos.
• Interactive Interaction Handling - Processes interaction requests from inline queries and callback buttons to trigger responses.
• Web Applications - Manages the configuration and launch modes for integrated web applications.
• WebAssembly Compilation - Transforms the library into WebAssembly binaries to enable execution within web browsers.

Star history